Home / 855,681.12-1,181,102.60-493,346.86

Finding the Fourth Proportional to 855,681.12, 1,181,102.60 and 493,346.86

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Solution

The fourth proportional to 855,681.12, 1,181,102.60 and 493,346.86 is: 680,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,681.12 : 1,181,102.60 = 493,346.86 : x
  2. Step 2: Convert to fraction form
    855,681.12/1,181,102.60 = 493,346.86/x
  3. Step 3: Cross multiply
    855,681.12x = 1,181,102.60 × 493,346.86
  4. Step 4: Simplify right side
    855,681.12x = 582,693,259,047.84
  5. Step 5: Solve for x
    x = 582,693,259,047.84/855,681.12
  6. Step 6: Final answer
    x = 680,970.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.